Pressure Washer

Operation

Angle to the cleaning surface

Figure 12 - Optimum angle to cleaning surface

When spraying water against a surface, you can generate maximum impact by striking the surface head on.. However, this type of impact can cause dirt particles to embed in the surface and can prevent the desired cleaning action..

The optimum angle for spraying water against a cleaning surface is 45 degrees..

Spray water against a surface at a 45 degree angle to achieve the most beneficial impact force and to efficiently remove debris..

Distance from cleaning surface

The distance between the spray nozzle and the cleaning surface is another factor that affects the impact force of the water.. The impact force of the water increases as the nozzle is moved closer to the surface..

How to avoid damaging surfaces

Damage to cleaning surfaces occurs because the impact force of the water exceeds the durability of the surface.. You can vary the impact force by controlling the nozzle’s fan pattern, the nozzle’s angle to the cleaning surface, and the nozzle’s distance from the cleaning surface.. Never use a narrow high impact stream or a Turbo/rotary nozzle on a surface that

is susceptible to damage.. Avoid spraying windows with a narrow high impact stream or turbo nozzle.. Doing so may break the window.. The most sure way to avoid damaging surfaces is to follow these steps:

1.Before triggering the gun, adjust the nozzle to a wide fan pattern..

2..Place the nozzle approximately 4-5 feet away from the cleaning surface.. Then hold the nozzle at a 45 degree angle to the cleaning surface.. Trigger the gun..

3..Vary the fan pattern spray angle and the distance to the cleaning surface until optimum cleaning efficiency is achieved without damaging the surface.

Turbo lANCe (not included with all models)

A turbo lance is equipped with a permanently attached nozzle.. This nozzle, sometimes referred to as a rotary nozzle, can significantly reduce cleaning time.. The turbo nozzle combines the power of a narrow high impact stream with the efficiency of a 25 degree fan pattern.. The turbo nozzle swirls a narrow high impact stream into a cone shape to clean a larger area..

since a turbo nozzle uses a narrow high impact stream, only use a turbo lance in applications where the cleaning surface cannot be damaged

by narrow high impact spray. The turbo nozzle is NOT adjustable and cannot be used to apply detergent.

4. Detergent Application

Use the instructions appropriate for model purchased

Note: Use only detergents formulated for pressure washers.. Test detergent in an inconspicuous area before use..

never slide the nozzle from low to high pressure or from high to low

pressure when the gun is triggered.

detergents

The use of detergents can dramatically reduce cleaning time and assist in the removal of difficult stains.. Many detergents are customized for pressure washer use on specific cleaning tasks.. Pressure washer detergents are as thick as water.. Using thicker detergents – like dish soap – will clog the chemical injection system and prevent the application of the detergent.

Once applied to a cleaning surface, detergents take time to break down dirt and grime.. Detergents work best when applied at low pressure..

You can effectively clean surfaces by combining the chemical action of detergents with high pressure rinses.. On vertical surfaces, apply the detergent starting at the bottom and work your way upward.. This method prevents the detergent from sliding down and causing streaks.. Begin high pressure rinsing at the bottom and work your way upward.. On particularly tough stains, use a brush in combination with detergents and high pressure rinsing..

Gasoline Powered Units Equipped with Adjusting Nozzle

1.Follow manufacturer’s label directions for mixing correct concentrations of soap/detergents.. The soap detergent to water ratio through the pump is approximately 12% (1 to 8)..

2.Insert the filter end of the clear plastic detergent tube into the detergent container..

3.Place hand around the spraying end section of the lance (the section that turns from left to right).. Pull firmly and quickly away from you. (NOTE: Do not adjust lance while spraying..) The lance will extend 1/2 inch and be in low pressure (see Figure 13).. Soap can only be drawn in low pressure..

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